John Deere 644K Wheel Loader
Units
Dimensions
Bucket
Breakout - Bucket
15378 (33903) kgf (lbf)
Bucket Capacity - Smallest
4.06yd3
Largest Bucket Capacity
4.19yd3
Dimensions
E
Ground Clearance
18.15in
A
Length With Bucket On Ground
27.24ft in
B
Width Over Tires
9.44ft in
D
Wheelbase
10.7ft in
F
Hinge Pin - Max Height
13.52ft in
H
Reach At Max Lift And Dump
5.29ft in
Turning Circle
43.57ft in
Height Over Cab
11.26ft in
Specifications
Engine
Pump
Piston
Engine Output-Net
232hp
Transmission Type
Powershift
Engine Make
John Deere
Engine Model
PowerTech PSS 6090
Torque
783.3lb ft
Rated Speed
1700rpm
Displacement
549.3cu in
Torque Rise
56%
System Voltage
24V
Emission Level
Tier 4
Alternator
130amps
Driveline
Ride Control System
Optional
Service Brake Type
Wet Disc
Parking Brake Type
Wet Multi Disc - Transmission
Differential Lock
Front- Locking, Rear- Open
Service Brake Actuation
Hydraulic
Tire Size - Standard
23.5 R25
Service Brake - Location
Axle Inboard
Capacities
Hydraulic Tank
27.8gal
Heaped Capacity
4.2yd3
Transmission
6.1gal
Operational
Operating Weight
41186.8lb
Fuel Capacity
104.9gal
Front Axle/Diff Fluid Capacity
5.9gal
Rear Axle/Diff Fluid Capacity
5.9gal
Transmission
Pump Flow
78.5gal/min
System Pressure
251.7psi
